diff options
Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/TARGET_DELTA_DFCM_NNN40/mbed_overrides.c')
| -rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/TARGET_DELTA_DFCM_NNN40/mbed_overrides.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/TARGET_DELTA_DFCM_NNN40/mbed_overrides.c b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/TARGET_DELTA_DFCM_NNN40/mbed_overrides.c new file mode 100644 index 0000000000..d3d2fe0d64 --- /dev/null +++ b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/TARGET_DELTA_DFCM_NNN40/mbed_overrides.c @@ -0,0 +1,123 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2013 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "cmsis.h" + + +#define SPIM1_SCK_PIN 11u /**< SPI clock GPIO pin number. */ +#define SPIM1_MOSI_PIN 15u /**< SPI Master Out Slave In GPIO pin number. */ +#define SPIM1_MISO_PIN 9u /**< SPI Master In Slave Out GPIO pin number. */ +#define SPIM1_SS_PIN 28u /**< SPI Slave Select GPIO pin number. */ + +#define CMD_POWER_UP (0xAB) +#define CMD_POWER_DOWN (0xB9) + +void spi_flash_init(void) +{ + NRF_GPIO->PIN_CNF[SPIM1_MOSI_PIN] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) + | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) + | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) + | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) + | (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos); + NRF_GPIO->PIN_CNF[SPIM1_MISO_PIN] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) + | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) + | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) + | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) + | (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos); + NRF_GPIO->PIN_CNF[SPIM1_SCK_PIN] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) + | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) + | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) + | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) + | (GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos); + + NRF_GPIO->PIN_CNF[SPIM1_SS_PIN] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) + | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) + | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) + | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) + | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos); + //cs = 1; + NRF_GPIO->OUTSET = (GPIO_OUTSET_PIN28_High << GPIO_OUTSET_PIN28_Pos); + + NRF_SPI1->ENABLE = 1; + NRF_SPI1->PSELSCK = SPIM1_SCK_PIN; + NRF_SPI1->PSELMOSI = SPIM1_MISO_PIN; + NRF_SPI1->PSELMISO = SPIM1_MOSI_PIN; + //spi.frequency(1000000); + NRF_SPI1->FREQUENCY = 0x10000000; //1MHz + + //spi.format(8,0); + uint32_t config_mode = 0; + config_mode = (SPI_CONFIG_CPHA_Leading << SPI_CONFIG_CPHA_Pos) | (SPI_CONFIG_CPOL_ActiveHigh << SPI_CONFIG_CPOL_Pos); //mode 0 + NRF_SPI1->CONFIG = (config_mode | (SPI_CONFIG_ORDER_MsbFirst << SPI_CONFIG_ORDER_Pos)); + //cs = 0; + NRF_GPIO->OUTCLR = (GPIO_OUTCLR_PIN28_Clear << GPIO_OUTCLR_PIN28_Pos); + //spi.write(CMD_POWER_UP); + while (!NRF_SPI1->EVENTS_READY == 0) { + } + NRF_SPI1->TXD = (uint32_t)CMD_POWER_UP; + while (!NRF_SPI1->EVENTS_READY == 1) { + } + NRF_SPI1->EVENTS_READY = 0; + NRF_SPI1->RXD; + //wait_ms(30); + // Deselect the device + //cs = 1; + NRF_GPIO->OUTSET = (GPIO_OUTSET_PIN28_High << GPIO_OUTSET_PIN28_Pos); + +} + +void spi_flash_powerDown(void) +{ + NRF_GPIO->OUTCLR = (GPIO_OUTCLR_PIN28_Clear << GPIO_OUTCLR_PIN28_Pos); + //spi.write(CMD_POWER_DOWN); + while (!NRF_SPI1->EVENTS_READY == 0) { + } + NRF_SPI1->TXD = (uint32_t)CMD_POWER_DOWN; + while (!NRF_SPI1->EVENTS_READY == 1) { + } + NRF_SPI1->EVENTS_READY = 0; + NRF_SPI1->RXD; + NRF_GPIO->OUTSET = (GPIO_OUTSET_PIN28_High << GPIO_OUTSET_PIN28_Pos); + + //wait for sleep + //wait_us(3); +} + +void mbed_sdk_init() +{ + // Default SWIO setting, pull SWIO(p19) to low for turning antenna switch to BLE radiated path + NRF_GPIO->PIN_CNF[19] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) + | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) + | (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) + | (GPIO_PIN_CNF_INPUT_Disconnect << GPIO_PIN_CNF_INPUT_Pos) + | (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos); + + NRF_GPIO->OUTCLR = (GPIO_OUTCLR_PIN19_Clear << GPIO_OUTCLR_PIN19_Pos); + + // Config External Crystal to 32MHz + NRF_CLOCK->XTALFREQ = 0x00; + NRF_CLOCK->EVENTS_HFCLKSTARTED = 0; + NRF_CLOCK->TASKS_HFCLKSTART = 1; + while (NRF_CLOCK->EVENTS_HFCLKSTARTED == 0) + {// Do nothing. + } + + spi_flash_init(); + + //nrf_delay_ms(10); + spi_flash_powerDown(); + +} |